Actually, the only Chinese "star" in the UFC is Zhang Tiequan. Cung Le is a Vietnamese born American. Then I think there are two more Chinese guys currently signed in the UFC, but who haven't fought there yet. Okami is Japanese (those two countries share quite some animosities against each other), Muńoz is Filipino-American.
No offense, but those guys would represent China as much as some Venezuelan or Cuban guy would represent the USA, because they are from the American continent.
1. Zhang Tiequan and his 1-3 record is likely cut.
2. Cung Le main evented the "china" event in Macau
3. Realistically MW division has 3 Asians in the top 15, I would be shocked shocked if they don't go with any of them for some guys that never fought in the UFC.